Learn the essentials of a new roof made for strength and durability. Read now!
A roof is more than just shingles on a roof covering a house—it’s a system that protects your home from the outside. Knowing the components of a roof system will help homeowners make informed decisions about maintenance, repairs and roof replacement.
Whether you’re getting a new roof or want to keep your current roof in shape, knowing the basics of a top roofing material and structure is important.
1. Roof Deck: The Foundation
The roof deck is the base structure on which everything is installed on. Made of plywood or oriented strand board (OSB), the roof deck provides the structural support for asphalt shingles, metal roofing and other types of roof covering. A damaged or rotten roof deck can cause wood rot and sagging roofs, so regular inspections are a must.
2. Underlayment: The Secret Protector
Under the shingles is the underlayment, a waterproof membrane that protects the roof deck from moisture intrusion. This layer is a barrier between the roof’s covering and the decking and is especially important in preventing leaks from heavy rain and snow. Felt or synthetic underlayment a common types with synthetic being more durable and protective. Ice and water shields are applied roofing underlayment in vulnerable areas like roof valleys and roof edges to prevent leaks.
3. Roofing: The Outer Shell
The roofing which is asphalt shingles, metal roofing and roof tiles is the first line of defense against the elements. Architectural and asphalt shingles offer more curb appeal and durability while galvanized steel and other metal materials offer longevity and weather resistance. Starter shingles are installed at the roof’s ridge and edges to secure the entire roofing system
4. Flashing: Sealing the Gaps
Metal roof flashing, metal flashing installed around the roof vents, valleys, chimneys, vent pipes and roof slopes where two roof slopes meet, prevents leaks by directing water away from joints and seams. Metal flashing is especially useful in areas with heavy rainfall and strong winds so water doesn’t seep into the roof structure or exterior walls.
5. Ventilation:
Proper attic ventilation helps regulate temperature and moisture levels to prevent mold growth direct water, and ice dams. A well designed ventilation system has ridge vents, turbine vents, intake vents and exhaust vents for continuous airflow. Ridge vents and gable roof vents expel hot air while intake vents near the fascia board allows fresh air to circulate reducing the risk of wood rot and premature deterioration of roofing materials.
6. Drip Edge: The Roof Perimeter Protector
The drip edge is a metal piece installed along the roof’s edge to direct rainwater away from the fascia board and prevent leaks. This small but important anatomy of a roof part extends the life of the entire roofing system by reducing water intrusion and protecting the roof layers from moisture damage.
7. Roof Sheathing: The Supporting Layer
Roof sheathing, usually made of wooden boards or OSB, reinforces the roof deck and provides a flat surface for roofing materials. Properly installed roof sheathing ensures the roof deck can withstand various weather conditions while maintaining the home’s curb appeal.
8. Ceiling Joists and Structural Support
Roofing structure is important for providing structural support and stability to the home, and ceiling joists are part of this system. They connect to the wall plate and distribute the weight of the roof evenly. Without enough support, the other parts of a roof can sag or suffer long term structural damage.
9. Roof Design and Style
Different roof styles affect both function and aesthetics. A gable roof has two roof slopes that meet at a peak, known as the roof ridge, which is important for proper ventilation through ridge vents. A hip roof has slopes on all four sides for added stability. Flat sloped roof surfaces require additional waterproofing like a synthetic waterproof membrane to prevent water accumulation. The right roof design can enhance the home’s architectural style and natural light through skylights.
10. Gutters and Drainage System: Water Flow Management
A functioning drainage system, a roof component including gutters and downspouts installed along the roof’s edges, is important in directing rainwater away from the home’s foundation. Properly installed gutters prevent leaks and water damage by ensuring excess rainwater doesn’t seep into the roof parts or exterior walls. Regular maintenance of these parts is necessary to avoid clogging which can cause blocked drainage and moisture buildup.
Installation Matters
Proper installation is key to long term performance and protection of residential roofs. Hire an experienced roofer and they will ensure all roof parts including roof flashing, felt or synthetic materials and metal flashing are installed correctly. A final roof inspection will confirm the entire roofing system is intact and working as intended.
Protect Your Home with a Solid Roofing System
Now that you know the parts of a whole roofing system, you’ll appreciate the complexity of your roofing system and the importance of choosing the right roofing material for maintenance. Need a roof inspection, repair or full roof replacement? Work with a professional roofer and your home will be protected for years to come.
Contact Evergold Roofing Group today for roofing services. Our team will provide top quality roofing contractor, installation and maintenance so your home is safe and secure no matter the weather.